Symmetry perception and psychedelic experience
This review of symmetry perception has six parts. Psychophysical studies have investigated
symmetry perception for over 100 years (part 1). Neuroscientific studies on symmetry …
symmetry perception for over 100 years (part 1). Neuroscientific studies on symmetry …
[HTML][HTML] Polygons have a small facilitatory effect on extraretinal symmetry perception
E Karakashevska, ADJ Makin - NeuroImage, 2024 - Elsevier
Symmetrical objects only project a symmetrical image onto the retina when viewed from
certain angles. Previous work has investigated the ERP response to visual symmetry in …
certain angles. Previous work has investigated the ERP response to visual symmetry in …
[HTML][HTML] Event related potentials (ERP) reveal a robust response to visual symmetry in unattended visual regions
Visual symmetry at fixation generates a bilateral Event Related Potential (ERP) called the
Sustained Posterior Negativity (SPN). Symmetry presented in the left visual hemifield …
Sustained Posterior Negativity (SPN). Symmetry presented in the left visual hemifield …
[HTML][HTML] When does perceptual organization happen?
Reflectional (mirror) symmetry is an important visual cue for perceptual organization. The
brain processes symmetry rapidly and efficiently. Previous work suggests that symmetry …
brain processes symmetry rapidly and efficiently. Previous work suggests that symmetry …
[HTML][HTML] The role of task on the human brain's responses to, and representation of, visual regularity defined by reflection and rotation
Identifying and segmenting objects in an image is generally achieved effortlessly and is
facilitated by the presence of symmetry: a principle of perceptual organisation used to …
facilitated by the presence of symmetry: a principle of perceptual organisation used to …
[HTML][HTML] Perception of wide-expanse symmetric patterns
Humans are remarkably proficient at the task of distinguishing between symmetric and non-
symmetric visual patterns. The neural mechanisms underlying this ability are still unclear …
symmetric visual patterns. The neural mechanisms underlying this ability are still unclear …
[HTML][HTML] Putting things into perspective: Which visual cues facilitate automatic extraretinal symmetry representation?[A Registered Report]
Abstract Objects project different images when viewed from varying locations, but the visual
system can correct perspective distortions and identify objects across viewpoints. This study …
system can correct perspective distortions and identify objects across viewpoints. This study …
The extrastriate symmetry response is robust to alcohol intoxication
Visual symmetry activates a network of regions in the extrastriate cortex and generates an
event‐related potential (ERP) called the sustained posterior negativity (SPN). Previous work …
event‐related potential (ERP) called the sustained posterior negativity (SPN). Previous work …
[HTML][HTML] Does Presentation Duration Modulate the Effect of Task on Perceptual Organization?
Visual symmetry activates the extrastriate cortex. This symmetry activation generates an
Event Related Potential (ERP) named the Sustained Posterior Negativity (SPN). The SPN is …
Event Related Potential (ERP) named the Sustained Posterior Negativity (SPN). The SPN is …
The interaction between luminance polarity grouping and symmetry axes on the ERP responses to symmetry
Symmetry is a salient visual feature in the natural world, yet the perception of symmetry may
be influenced by how natural lighting conditions (eg, shading) fall on the object relative to its …
be influenced by how natural lighting conditions (eg, shading) fall on the object relative to its …